We’ve all been there. You show up at a beach, and there’s a colored flag, sometimes more than one, fluttering in the wind. The lifeguards put it there for a reason, but what does it mean? Surfers are ...

Red flags are for danger; do not enter, and stay far away from whatever the red flag signals. Green means Go!, it's all good, and the course ahead is clear. Yellow flags are trickier. Yellow flags are ...

Throughout the month of January, come let your creativity fly at the Seaport Museum by making your own signal flag swags. For centuries, flags were the only form of communication between ships at sea, ...